AGV trolley with jacking rotating mechanism

Abstract

The utility model discloses an AGV trolley with a jacking rotating mechanism. The AGV trolley mainly solves the problems that an existing AGV trolley jacking mechanism is complex in structure, large in machining difficulty and high in cost. The AGV trolley comprises a chassis, driving wheels arranged on the two sides of the middle of the chassis, driven wheels arranged at the front end and the rear end of the chassis, four connecting rods with one ends fixed to the chassis and achieving lifting, a lifting disc connected to the other ends of the connecting rods, a lifting driving mechanism arranged on the chassis and the lifting disc, and a rotating mechanism arranged on the lifting disc. Through the design, the AGV trolley can be suitable for a floating type chassis, the floating angle is larger than or equal to 5 degrees, due to the connecting rod structure, the overall size of the AGV trolley is reduced, the integration degree is high, the motor speed reducer is integrated in the lifting interior, and the size of the AGV trolley can be further reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of logistics automation, and in particular relates to an AGV trolley with a lifting and rotating mechanism. Background Art

[0002] AGV (Automated Guided Vehicle), also known as an automatic guided transport vehicle, is a transport vehicle equipped with an automatic guidance device such as electromagnetic or optical. It is often called an AGV cart. It can travel along a specified guide path, has safety protection and various transfer functions, and is generally used in high-end production and manufacturing environments.

[0003] AGVs feature a cargo lift mechanism for loading and unloading. Traditional lift mechanisms use screws or other lifting mechanisms, with the lift and base being a fixed, integrated unit. This results in a complex structure, difficult and costly machining, and requires regular maintenance of the timing belt. They are only suitable for monolithic chassis, limiting their application scenarios and are bulky and space-consuming. Utility Model Content

[0004] The purpose of the utility model is to provide an AGV trolley with a lifting and rotating mechanism, which mainly solves the problems of the existing AGV trolley lifting mechanism having a complex structure, great processing difficulty and high cost.

[0005] In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:

[0006] An AGV trolley with a lifting and rotating mechanism includes a chassis, driving wheels arranged on both sides of the middle of the chassis, driven wheels arranged at the front and rear ends of the chassis, four connecting rods fixed at one end to the chassis for achieving lifting, a lifting plate connected to the other end of the connecting rod, a lifting drive mechanism arranged on the chassis and the lifting plate, and a rotating mechanism arranged on the lifting plate.

[0007] Furthermore, in the present invention, the lifting drive mechanism includes a ball screw fixed to the chassis and movably connected to the lifting plate, a ball screw nut movably connected to the ball screw, a lifting driven gear connected to the ball screw through a bearing, and a lifting reducer fixed to the lifting plate and meshing with the lifting driven gear through a lifting driving gear (16).

[0008] Furthermore, in the present invention, a lifting limit switch is provided on the chassis.

[0009] Furthermore, in the present invention, the rotating mechanism includes a rotary reducer fixed on the lifting plate, a driving gear driven by the rotary reducer and arranged on the top of the lifting plate, and a rotating plate whose circumferential side is meshed with the driving gear and is rotationally connected to the lifting plate.

[0010] Furthermore, in the present invention, the chassis is composed of a front chassis and a rear chassis hinged in the middle.

[0011] Furthermore, in the present invention, the two driven wheels are diagonally arranged on the front chassis and the rear chassis.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] (1) The lifting mechanism of the present invention adopts a connecting rod form. The connecting rod mechanism can play a lifting role and also serve as a supporting structure. It can be applied to a floating chassis, and the floating angle is greater than or equal to 5°. The connecting rod structure reduces the overall size of the AGV trolley and has a high degree of integration. The motor reducer is integrated inside the lifting, which can further reduce the size of the AGV.

[0014] (2) The utility model adopts a fixed speed reducer installation form to reduce the shortening of life caused by the floating mechanism. At the same time, the transmission structure adopts a single ball screw transmission, which is highly efficient and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0016] Figure 2 It is a side structural diagram of the utility model.

[0017] Figure 3 It is a schematic diagram of the top structure of the utility model.

[0018] Figure 4 It is a schematic diagram of the lifting drive mechanism in the present utility model.

[0019] Figure 5 This is a schematic diagram of the hinged structure of the chassis of the present invention.

[0020] The names corresponding to the reference numerals are:

[0021] 1-Chassis, 2-Driving wheel, 3-Driven wheel, 4-Connecting rod, 5-Lifting plate, 6-Ball screw, 7-Lifting reducer, 8-Lifting limit switch, 9-Rotation reducer, 10-Drive gear, 11-Rotating plate, 12-Front chassis, 13-Rear chassis, 14-Ball screw nut, 15-Lifting driven gear, 16-Lifting driven gear. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments. The present invention includes but is not limited to the following embodiments.

[0023] Example

[0024] like Figures 1 to 5 As shown, the utility model discloses an AGV trolley with a lifting and rotating mechanism, comprising a chassis 1, driving wheels 2 arranged on both sides of the middle part of the chassis 1, driven wheels 3 arranged at the front and rear ends of the chassis 1, four connecting rods 4 fixed at one end on the chassis 1 for achieving lifting, a lifting plate 5 connected to the other end of the connecting rod 4, a lifting drive mechanism arranged on the chassis 1 and the lifting plate 5, and a rotating mechanism arranged on the lifting plate 5. In this structure, the chassis 1 is hinged in the middle by the front chassis 12 and the rear chassis 13 to form a floating chassis. It is connected by a hinge and swings within a certain range, which can better fit the ground, so that the AGV trolley can overcome a driving route with a certain slope. In this AGV trolley, the two driven wheels are arranged diagonally on the front chassis 12 and the rear chassis 13.

[0025] Among them, the connecting rod mechanism can play a lifting role and also serve as a supporting structure. It can be applied to a floating chassis with a floating angle greater than or equal to 5°. The connecting rod structure reduces the overall size of the AGV car and has a high degree of integration.

[0026] In this embodiment, the lifting drive mechanism includes a ball screw 6 fixed to the chassis 1 and movably connected to the lifting plate 5, a ball screw nut 14 movably connected to the ball screw 6, a lifting driven gear 15 connected to the ball screw 6 via a bearing, and a lifting reducer 7 fixed to the lifting plate 5 and meshing with the lifting driven gear 15 via a lifting driving gear 16. In this embodiment, a fixed reducer installation is adopted to minimize the lifespan reduction caused by the floating mechanism. Furthermore, the use of a single ball screw transmission provides high efficiency and low cost.

[0027] In this embodiment, the rotating mechanism includes a rotary reducer 9 fixed on the lifting plate 5, a driving gear 10 driven by the rotary reducer 9 and arranged on the top of the lifting plate 5, and a rotating plate 11 whose circumferential side is meshed with the driving gear 10 and is rotationally connected to the lifting plate 5.

[0028] When the AGV trolley of the utility model is running, the driving wheel drives the driven wheel to make the entire trolley move, the lifting reducer drives the ball screw to use the connecting rod to realize the up and down movement of the lifting plate, thereby realizing the loading and unloading of goods on the AGV trolley. Among them, the rotating mechanism is mainly used to adjust the unloading angle of the goods on the trolley.

[0029] Through the above design, the AGV trolley of the utility model can be suitable for a floating chassis, and the floating angle is greater than or equal to 5°. The connecting rod structure reduces the overall size of the AGV trolley and has a high degree of integration. The motor reducer is integrated inside the lifting device, which can further reduce the size of the AGV.

[0030] The above embodiment is only one of the preferred implementation methods of the present invention and should not be used to limit the scope of protection of the present invention. Any changes or modifications that have no substantive meaning made to the main design concept and spirit of the present invention, as long as the technical problems they solve are still consistent with the present invention, should be included in the scope of protection of the present invention.

Claims

1. An AGV with a lifting and rotating mechanism, characterized in that: The invention comprises a chassis (1), driving wheels (2) arranged on both sides of the middle of the chassis (1), driven wheels (3) arranged at the front and rear ends of the chassis (1), four connecting rods (4) fixed at one end on the chassis (1) for achieving lifting, a lifting plate (5) connected to the other end of the connecting rod (4), a lifting drive mechanism arranged on the chassis (1) and the lifting plate (5), and a rotating mechanism arranged on the lifting plate (5).

2. The AGV with a lifting and rotating mechanism according to claim 1, characterized in that: The lifting drive mechanism comprises a ball screw (6) fixed to a chassis (1) and movably connected to a lifting plate (5), a ball screw nut (14) movably connected to the ball screw (6), a lifting driven gear (15) connected to the ball screw (6) via a bearing, and a lifting reducer (7) fixed to the lifting plate (5) and meshing with the lifting driven gear (15) via a lifting driving gear (16).

3. The AGV with a lifting and rotating mechanism according to claim 2, characterized in that: The chassis (1) is provided with a lifting limit switch (8).

4. The AGV with a lifting and rotating mechanism according to claim 3, characterized in that: The rotating mechanism comprises a rotary reducer (9) fixed on the lifting plate (5), a driving gear (10) driven by the rotary reducer (9) and arranged on the top of the lifting plate (5), and a rotating plate (11) whose circumferential side surface is meshed with the driving gear (10) and is rotatably connected to the lifting plate (5).

5. The AGV with a lifting and rotating mechanism according to claim 4, characterized in that: The chassis (1) is composed of a front chassis (12) and a rear chassis (13) hinged at the middle.

6. The AGV with a lifting and rotating mechanism according to claim 5, characterized in that: The two driven wheels are arranged diagonally on the front chassis (12) and the rear chassis (13).

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